Vehicle-spring.



'G.,G. BLANDFORD. VEHICLE SPRING APPLICATION FILED MAR-19,49]!- Patented Apr. 30, 1918.

- memes.

stem or. BLANDFORD, or GRAND RAPIDS,.1YIIGHIGAN.

VEHICLE-SPRING.

To aZLwhom it may concern:

Be it known that I, GL N G. BLANDFORD,

a citizen of the United'States, residing at Grand Rapids, in the ,county ofKent and State of Michigan, have invented certain new and useful Improvements in Vehicle- Sp rings, of which the following is a specification.

My invention relates to improvements in vehicle s 1 )rings, and more especially in springs for use upon heavy automobile d rays, and its object is to provide a more' jiertect .means for lubricating the surfaces of the springs, and thus greatly reduce the friction the line.2-2 of Fig. 1. Fig. 3 is a plan of one end of a leaf showing the groove and opening -forfacilitating the luln'ication.

lfig. l is a transverse section of the extreme 'end of the spring showing how the oiling appliances may be attached through the sup porting pin in the stirrup. Big. 0 1s a sectional sideelevation of one end of the spring showing the oil cup as mounted in the pin.

Similar reference numerals indicate similar parts throughout the several views.

1', represent 'themain spring leaves; 2 rep resent the intermediate leaves, and 3represent the crown leaves of the spring. My invention consists in forming shallow channels 4, l )ngitud1m1lly of the center of the leaves, in such a manner that o1l pass1ng to the springs from any oil reservoir, as 9, at

an elevated position on the springs, will pass into, and flow along in the channels to the lowest point in the springs, passing through the openings 5 to each succeeding leaf of the spring. Bythis means 01] entering at a desired point will be equally distributed over the entire surface of each of the spring 'eral leaves in'th'e spring.

-dinall v, and out of the'bolts through the Specification of Letters Patent. Patented Apr, 3t), 191%, Application' filed March 19, 1917. Serial No. 155,939,

leaves and tained. I

In the construction of these springs'I form a rib l upon the lowerside of each intermediate leaf of the spring, slightly smaller than the channel, but exactly registering therewith, so that a quantity of oilwill be forced through the channelsand sidewise therefrom, thus insuring the perfect lubrication of all parts of the surfaces of the sevperfect lubrication will be at- In Fig. -l- I have shown, ,lnore plainly, how theoil cu p is mounted .in the supporting bolts at the ends of the springs. It will be readily understood that-the oil will pass i from the cups 9 through the bolts 7 longituopenings 8 into the opening in the end of the spring for the reception of the pin or bolt T, and thence through the openings 5 to the next lower. spring leaf and thence through the channel -l tothe opening 5,'all as hereinbefore described and forythe purpose set forth. andas indicated in Fig. 5.

' What I claimas new, and desire to secure by Letters latent, of the United States-,is:

In,eombimition, a vehicle spring made up of several leaves having properly located oil conducting channel's formed therein and communicating with each other and having openings through the ends for supporting bolts, said openingscommunicating with one of said channels. stirrups for supporting said spring, said stirrups having openings corresponding with the openings through the spring, hollow supporting bolts having lateral openings to the surface, passed 8 through the openings in the stirrups and the ends of the spring, and oil eupsconnected with the supporting bolts in such a manner that oil will pass from said cups through the bolts and into the oil channels in the 90 spring tolubricate the adjacent surfaces of the leaves.

Signed at Grand Rapids, Michigan, March GLEN Gr. BLANDFORD. 

